Knee strap



FIG. 1 is a bottom view of a knee strap, showing our new design.

FIG. 2 is a side view thereof.

FIG. 3 is a top view thereof; and,

FIG. 4 is an elevated view thereof, showing the knee strap in use condition.

The broken lines on the surface of the strap represent stitching which passes through the strap and holds a pouch enclosed tubular member to the bottom of the strap.

The broken line shown above and below the right and left sides of the strap illustrated in FIG. 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a knee strap, as shown and described. 